Machine fob making hoes



UNTTED STATES PATENT OFFICE.

HENRY SAUERBIER, OF NEVARK, NEW JERSEY.

MACHINE FOR MAKING HOES.

Speccation of Letters Patent No. 23,502, dated .April 5, 1859.

To all whom it may concern:

Be it known that I, HENRY SAUERBIER, of the city of Newark, in thecounty of Essex and State of New Jersey, have invented certainmprovements in Machines for Making Hoes; and I do hereby declare thefollowing to be a full and exact description thereof, reference beinghad to the drawings which accompany this specification and make partthereof. l

The nature of my invention consists in adapting machinery to forming theeye of hoe from a iiat disk of sheet steel.

In the drawings Figure l is a perspective view of the machine. Fig. 2 isa front View of a hoe when finished. Fig. 3 is the form of the diskprepared to put into the machine. Fig. -l an edge view of the hoeiinished. Fig. 5 is the pair of dies between which the disk is pressedand held while the eye is forming. Fig. G shows the cam lever whichpresses and holds the dies together with the disk between. It also showsthe lever and pin which turns down the part of the disk intended for theeye. Fig. 7 is the pin around which the eye is formed. Fig. 8 shows thepin left in position when the lever used to press it down, is beingraised. Figs. S) and 10 show the clamps for turning the parts of thedisk over the pin preparatory for being welded together.

The same letters refer to the same parts in each iigure.

I have steel plates rolled, with the edge out of which the eye of thehoe is formed, thicker than the other; and in the form required; thethickness not being a regular taper from one edge to the other but justso as to give strength where required. A disk of the form of Fig. 3 iscut from the plate. The two wingsl a and Z) when turned down and bentover and the ends welded together, form the eye. This disk is placed inthe machine between two dies c and (Z, with the wings a and b projectingabove the top of the dies. The lever A being turned down compresses thedisk into the form shown by the shape of the dies in Fig. 5. A kind of aV projection is formed in the front under the eye of the hoe, taperingto a point which gives support and strength to the blade. The pin Fig. 7is then hung upon the lever B, and the lever on being brought down turnsthe wings a; and b over on to the top of the die (Z, and as in the topof the die, is a segment of a circle of the size of the outside `of theeye of the hoe, the ends naturally turn up. The jaws of the clamp e aremade to project over the top of the die d, one on each side of theindentation on the top of the die. These receive the ends of the wings aand Z) as they are being turned over, and bring them when turned downinto the position shown in Fig. 10, that is, lying in the open jaws ofthe clamp ready to be turned over the pin 7 when the aws shall close. Itwill be noticed that one jaw of the clamp is as much higher than theother as the thickness of the wings, the obj ect being to lap the endsof the wings over each other ready to be taken to the forge and welded.Then the ends are turned over the pin (7) then the pin (7) is knockedout which as it is tapering to give the eye its proper form, is easilydone, and the pin is again hung on the lever B, on which a stud f isplaced fitting loosely into the hole n in pin, 7.

As various methods can be employed to open and close the jaws of theclamps, I do notconine myself to any one in particular. Two modes areshown in Figs. 9 and 10 either of which can be made effect-ual. Theseclamps are attached in front of the die Z), and are operated by thelever C, which on being brought down, closes the clamps with theadvantage of leverage and the strength of the operator.

The block D to which the whole of the levers are attached and in whichthe dies are placed is made of cast iron of such thickness and solidityas the operation may require.

The advantage of this method is, the whole of the operation to form theeye ready for welding can be done instantly while the thin disk of steelis at the proper heat to work with ease and preserve its quality, bywhich a lighter hoe of equal strength can be made superior to the oldkind, made by welding an iron eye to a steel blade.

I do not claim any of the parts of the machine separately; but

lVhat I claim and desire to secure is- The cam lever A and the dies cand d in combination with the lever B, the loose pin 7 and the clamps e,constructed and arranged substantially in the manner and for the purposeherein above specified.

H. SAUERBIER.

Witnesses WM. M. GooDING, JOHN Gr. DEMARnsT,

